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97145900 = 22523972447
BaseRepresentation
bin1011100101001…
…01010000101100
320202210112010022
411302211100230
5144332132100
613350101312
72256504125
oct562452054
9222715108
1097145900
114a922175
122864a838
13171846a7
14cc8b04c
1587dde85
hex5ca542c

97145900 has 36 divisors (see below), whose sum is σ = 211423968. Its totient is φ = 38744640.

The previous prime is 97145891. The next prime is 97145921. The reversal of 97145900 is 954179.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38477 + ... + 40923.

It is an arithmetic number, because the mean of its divisors is an integer number (5872888).

Almost surely, 297145900 is an apocalyptic number.

It is an amenable number.

97145900 is an abundant number, since it is smaller than the sum of its proper divisors (114278068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97145900 is a wasteful number, since it uses less digits than its factorization.

97145900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2858 (or 2851 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 97145900 is about 9856.2619689211. The cubic root of 97145900 is about 459.7003404358.

The spelling of 97145900 in words is "ninety-seven million, one hundred forty-five thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 397 794 1588 1985 2447 3970 4894 7940 9788 9925 12235 19850 24470 39700 48940 61175 122350 244700 971459 1942918 3885836 4857295 9714590 19429180 24286475 48572950 97145900